The citations are just warnings for now, but could lead to big fines if the calls don't stop

The Federal Communications Commission (FCC) has issued citations to two known robocallers in an effort to put a stop to the illegal activity.

Robocalls are illegal automated calls to mobile phones, which usually offer the recipient a scam of some sort.

The FCC cited two robocaller companies -- Dialing Services and Democratic Dialing -- for making over 1 million illegal calls each during 2011 and 2012. Both companies were tied to political campaigns, where Dialing Services is listed on websites like "GOPCalls.com" and Democratic Dialing is obviously in favor of democratic sites.

"Consumers have increasingly been sounding the alarm on robocalls," said FCC Enforcement Bureau chief Michele Ellison. "These citations set the stage for significant monetary penalties if violations continue."

The citations are just warnings for now, but if the companies don't quit with the robocalls, they could be fined as much as $4.8 million.

In October 2012, the U.S. Federal Trade Commission (FTC) created a competition called the "Robocall Challenge," where those who come up with a solution to ending robocallers will win up to $50,000 USD. The contest ran through January 17, 2013, at 5:00 pm ET, and the winners will be announced April 15.